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Image: MIH-film27jpg whitebalance

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Description: Musée International d'Horlogerie, La Chaux-De-Fonds, Switzerland. On the left is one of the first quartz clocks, which superseded mechanical clocks as precision time standards in the 1930s. On the right is a precision regulator clock made by German firm Clemens Riefler, which were used as time standards worldwide in the early 1900s.
Title: MIH-film27jpg whitebalance
Credit: MIH-film27jpg.jpg
Author: MIH-film27jpg.jpg: Rama. derivative work: Bajsejohannes (talk)
Usage Terms: Creative Commons Attribution-Share Alike 2.0 fr
License: CC BY-SA 2.0 fr
License Link: http://creativecommons.org/licenses/by-sa/2.0/fr/deed.en
Attribution Required?: Yes

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